Go home.

You turn back and go home to check something.

Opening the door you find the house very similar to what it was but with a few exceptions. No shoes or coat rack in the entrance. The laundry room is now a small gym. All pictures of you and your family, all magazines, book covers, DVD jackets, or any image of anyone only pictures naked people. The bathroom has no door and in it the shower has a clear curtain only designed to avoid splashing and no to give privacy.

In your room, bigger now that it doesn't contain closets and drawers for clothes you find that your stash of porn mags is missing.

You check your computer but with nudity being the norm the concept of porn has disappeared. Still you can find a few videos of couples filming themselves having sex but it doesn't seem to be as a way to arouse people but as a reminder of their attempts to conceive.

You find it enough and are soon masturbating furiously watching it an a few video of girls doing various everyday activities totally naked when you hear a voice behind you.

"home already, Frank? Weren't you going to buy a gift for Ashley? " asks your mom.

She is standing there in front of your door, naked with her perfect milf body and her F cups boobs.

"What are you doing? How did this happen? Are you alright sweetheart? This can't be right." she asks you as she sees your erection.

In this world with nudity being totally non sexual, men only get erect when in presence of a girl they truly love and want to be with for life.

And there you are alone in a room with your mom and with a raging erection.

A spontaneous erection while alone would be something serious enough for your mom so get you to see a doctor.

You could pretend it only started when you saw her but you aren't sure if the social habit of girl going out with boys they make hard would have an effect if the girl is your own mother.